John walch



JOI-IN XVALOH, OF NEW YORK, N. Y.

STOVE.

Specification of Letters Patent No. 27,488, dated March 13, 1860.

To all whom 'Lt may concern:

Be it known that I, Jol-1N VVALGH, of New York, in the county and Stateof New York, have invented a new and Improved Calorific Air-Chamber forStoves or Open Fireplaces; and I do hereby declare that the following isa full and exact description thereof, reference being had to theaccompanying drawings and to the letters of reference marked thereon.

Figure I represents a front elevation. Fig. II shows a section throughthe line, N N, Fig. IV. Fig. III shows a section in the direction ofline, O O, Fig. V. Fig. IV is a horizontal section at the line A Fig.II. Fig. V is a horizontal section at the line B Fig. II, and Fig. VI isa horizontal section at the line, O, Fig. II.

Similar letters represent similar parts.

The nature of my invention consists in the arrangement of a caloriiicair chamber in the stove or fireplace in such a manner that said chamberforms partly the back and sides of the fireplace, then turns upward,connected to the sides of the stove, so as to form a distinct divisionin the stove, to force the flame or gases up on the front, over the top,and down on the rear of said chamber to the smokepipe. This chamber hasan opening at or near the bottom of the stove for the cold air to enter,to be heated while passing through said chamber, and the heated or hotair escapes again at or near the top of the stove.

The accompanying drawings represent the improvement applied to a\ closestove but it will readily be seen that the same arrange ment may be madein an open fireplace or open stove.

D represents the outer casing of a stove with a fire grate, E, near thebottom in the usual manner. Below the regrate doors or openings, F, aremade for the admission of the required air to the fire.

Behind the regrating an air chamber Gr is made in the stove extendingabout one half around the stove (if made circular) and forming the backof the fireplace. This chamber extends downward to the bottoni of thestove, where it is open, for the admission of the air into said chamber.The outside of this chamber below and opposite the fireplace is formedby the casing of the stove, and the inner side of said chamber oppositethe fire is made either corrugated or lined with firebrick.

Above the lire this chamber turns toward the central part of the stove,and is carried then upward in the shape of a fiat box, connected on bothsides with the sides or casing of the stove, so as to divide the upperpart of the stove in two parts, until within a short distance from thetop, where the said chamber is closed, so as to allow the flame andsmoke to pass over it, and to the back part of the same, and into thesmoke pipe H as indicated by the arrows (2). At or near the upper end ofthe air chamber, G, openings, K, are made from this chamber, G, throughthe casing I) of the stove, to allow the air which passes through thischamber to escape again into the room after having in its passage beenheated.

Instead of letting the heated air escape at the sides of the stove, ashere described, a branch may be carried from the top of the air chambertoward the front of the stove or the air may be allowed to escapethrough the top of the same and then conducted to any other apartmentwhich requires to be heated, care being taken to give sufiicient passageover the top of the air chamber, G, for the flame, gases and smoke fromthe fire to pass toward the smokepipe I-I. The cold and damp atmosphereenters at the bottom of the stove into this air chamber Gr, and afterbeing heated during its passage through the same, passes out again, asindicated by the arrows marked, 3, near the top of the stove into theroom, producing thereby a perfect purified ventilation of the apartment.

This air chaimber does not take away much of the actual heating surfaceof the stove, and rather increases the same, giving at the same time ahealthy ventilation, without increasing the consumption of fuel.

I do not claim a chamber in a stove into which air is supplied by pipes,and which is open through the top of the stove, nor do I claim a chambersuspended in the central part of the stove, and surrounded by re, theair being supplied through the stovebase and escaping at the top, but Iam not aware that in any previous instance an air chamber has beenfitted to a stove or fireplace which forms first partly the back andsides of the fireplace or iirepot, and then in the upper part a distinctdivision in the stove, rising direct from the bottom or stovebase untilwithin a short distance of the top of the stove, so as to force theflame and gases up the front part, over the top, and down the stove andforming first the backpart of at the rear of said chamber to thesmokethe fireplace or repot and then a distinct pipe, said chamberhaving an opening at division in the stove, from one side t0 the l5 thebottom and outlets for the air at the otherl side of the stove, wherebythe flame 5 upper part of the stove, and and gases are made to pass upon the front, I claim therefore as my invention and de'- over the top,and down on the rear of said sire to secure yby Letters Patentchamber tothe smokepipe in the manner and The application and combination With afor the purpose substantially as specified. stove of an air chamberconstructed and ar- JOHN WALCH. 10 ranged as described, said chamberrising di- Witnesses:

rectly from the lower part of the stove base HENRY E. ROEDER, 2 untilWithin a short distance of the top of JAMES H. DAVIDSON.

